Hyper-Q logs critical startup messages as well as errors at runtime to a file named
error_log-DATE_TIME.csv. The default location for the log files is:
If the installation has been customized and Hyper-Q uses a custom log directory, the path for the log files of the running instance can be located using the following Linux command:
ps ax | grep dtm
In the resulting output, look for
During Hyper-Q start-up and at midnight, a new log file is created with the current date and time as part of the filename.